Individually Owned: 150,657
Corporate Owned: 137,281
Naper Aero Club Aero Airport
Aircraft Accident/Incident Report
Naperville, Illinois 60564
Wednesday, October 6, 2010 12:04 CDT
NTSB Narrative Summary Released at Completion of Accident
During takeoff, the pilot rotated the airplane beyond the airplane's takeoff ground roll distance and at a speed near the airplane’s stall speed. A witness saw the airplane climb with a nose-up pitch of about 20 degrees. Although the airplane had experienced a partial loss of engine power, as reported by the pilot, it was still able to climb while in a high pitch attitude and corresponding high drag attitude, which is indicative that the airplane had excess horsepower to climb and sustain flight at higher airspeeds and lower angles of attack. However, the pilot continued to attempt to climb rather than to abort the takeoff, exceeded the necessary power requirements, and was unable to sustain the climb; the airplane impacted a building. Postaccident examination of the airplane’s engine revealed a detached fuel servo air inlet coupling that would have perturbed or restricted airflow to the fuel servo, which resulted in the reduced engine power. The examination also revealed a preexisting hole in an exhaust pipe near the fuel servo that would have allowed hot exhaust gases to flow into the fuel servo air inlet, which would also result in reduced engine power. The airplane had undergone an annual inspection performed by the airplane’s owner and two mechanics with inspection authorizations 3 flight hours before the accident flight; the inspection should have identified the detached coupling and the hole in the exhaust pipe.
NTSB Probable Cause Narrative
The pilot’s failure to abort the takeoff when he realized the airplane was not attaining sufficient takeoff and climb performance. Contributing to the accident was the airplane’s partial loss of engine power due to an obstruction of the fuel servo air inlet by the intake duct coupling and ingestion of exhaust gases from a preexisting hole in the exhaust pipe. Also contributing to the accident was the improper annual inspection of the airplane by the owner and two mechanics.
Event Information
| Type of Event | Accident |
| Event Date | 10/6/2010 |
| Event Day of the Week | Wednesday |
| Time of Event | 1204 |
| Event Time Zone | Central Daylight Time |
| Event City | Naperville |
| Event State | ILLINOIS |
| Event Country | -- |
| Zipcode of the event site | 60564 |
| Event Date Year | 2010 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 414443N |
| Event Location Longitude | 0881202W |
| Event Location Airport | Naper Aero Club Aero |
| Event Location Nearest Airport ID | LL10 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 702 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1205 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 145 |
| Weather Observation Facility ID | LOT |
| Elevation of weather observation facility | 679 |
| Distance of event from weather observation facility (units?) | 8 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | 5 |
| Wind Direction (degrees magnetic) | 270 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.11 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 2 |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30346 |
| NTSB Notification Source | FAA-AGL-ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jul 18 2012 3:33PM |
| User who most recently changed record | bowl |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N3402Q |
| NTSB Number | CEN11FA007 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-32R-300 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 32R-7780310 |
| Certified Max Gross Weight | 3600 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Sep 22 2010 12:00AM |
| Airframe hours since last inspection | 3 |
| Airframe Hours | 3343 |
| ELT Installed | Yes |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Airplane Holdings Company |
| Aircraft Owner Street Address | 2711 Centerville Rd Ste 100 |
| Aircraft Owner City | Wilmington |
| Aircraft Owner State | DE |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 19808 |
| Operator is an individual? | No |
| Operator Name | Pilot |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Naperville |
| Operator State | IL |
| Operator Country | USA |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | -- |
| Departure City | Naperville |
| Departure State | IL |
| Departure Country | USA |
| Departure Time | 1204 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | AGC |
| Destination City | Pittsburgh |
| Destination State | PA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 4 2012 5:30PM |
| User who most recently changed record | galm |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 36 |
| Runway Length | 2575 |
| Runway Width | 30 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |